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在小切口镜片提取 (SMILE) 后,不同角膜残留床厚度的比较

Bo-Wen Ouyang¹, Hui Ding¹, Hongming Fan²

¹Hainan Eye Hospital and Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangzhou, China.

European journal of ophthalmology

|July 13, 2023

概括

小切口镜片提取 (SMILE) 在早期术后期的角膜残余床厚度 (RBT) 范围为250-310微米的范围内是安全和稳定的. 余床厚度可能会影响SMILE后的角膜后部升高.

科学领域:

眼科医生眼科眼科
角膜外科手术角膜外科手术
折射手术是一种折射手术.

背景情况:

小切口镜片提取 (SMILE) 是一种流行的折射性手术程序.
了解SMILE后角膜的生物力学稳定性对于患者的安全和结果至关重要.
角膜残留床厚度 (RBT) 是影响角膜手术后生物力学的一个关键因素.

研究的目的:

根据不同角膜残余床厚度 (RBT) 来评估SMILE后角膜生物参数的稳定性.
确定RBT是否影响SMILE后的关键生物力学和地形测量.
评估不同RBT范围在早期术后期的安全性和稳定性.

主要方法:

一项前性临床试验,涉及64名接受SMILE治疗的患者的127只眼睛.
根据RBT,患者被分为三组:250-270微米,270-290微米和290-310微米.
用Corvis ST和Pentacam在手术前和手术后1天,1周,1个月和3个月测量角膜生物机械和地形参数.

主要成果:

在SMILE后的组之间,除角膜厚度 (P <0.05) 外,没有观察到显著的角质计值差异 (P > 0.05).
与250-270微米组相比,290-310微米RBT组在特定的术后间隔显示出较高的后部最大升高和最薄点.
在所有组中,最大变形幅度在手术后增加,在250-270微米组的价值较高,而在以后的时间点中,与290-310微米组相比.

结论:

在SMILE后的早期术后阶段,RBT范围为250-310μm被认为是安全和稳定的.
剩余床厚似乎与后角膜升高有积极的相关性.
这些发现支持SMILE在研究的RBT参数中的安全性,这对折射手术规划有潜在的影响.

关键词:

小切口镜片提取 (SMILE) 的方法角膜生物力学角膜生物力学角膜的地形图是角膜的地形图.后面的角膜升高.剩余床的厚度剩余床的厚度

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